def main():
    """
    1.可迭代对象通过__iter__获取迭代器
    2.迭代器也是可迭代对象
    :return:
    """
    beat = {"heat": ["heat", "cheat", "wheat"]}
    for i in beat.values():
        print(i)


if __name__ == '__main__':
    main()
